The read/write performance is pretty disappointing. Take my advice. This makes them stay on your feet securely so that youd be comfortable running a bit, for example. Since my built-in microphone is inside the laptop next to the keyboard/screen interface, I couldnt use the mic with the laptop closed and had to open it whenever I had a teleconference -- a pain in the neck. I would think about sizing half a size up if you can, seem to run a tad bit small. Ich habe danach noch 2 andere Räder eingespannt, darunter auch ein E-Bike. You?ll Just need 1 carabiner. Did water test on them and they are waterproof. I am usually at UK 5 and these fit perfectly. I?m a Fanatic about the brand sooooooooo there